Manchester City showed just how far Southampton still have to go as a top club having swatted the Saints aside in a comfortable 3-0 win.
Southampton could have taken the lead early on when Graziano Pelle and Steven Davis had chances, but Joe Hart kept the Saints at bay.
The game arguably turned on its head when Southampton midfielder Morgan Schneiderlin was substituted with an injury at half time, with Maya Yoshida coming on at the break.
City then took control, as Yaya Toure drove the ball home from the edge of the box to give Manuel Pellegrini's side the lead after 51 minutes.
The Blues then effectively killed the game off when Frank Lampard scored something of a carbon copy of Toure's goal to give City a two-goal cushion.
With Southampton committing men forward, City added gloss to the win, countering at pace before Gael Clichy arrived at the back post to slam the ball into the roof of the net.
It's been a great few days for City, who beat Swansea City and Bayern Munich earlier this week, and they have now closed the gap behind Chelsea to six points.
Southampton now drop to third, but remain comfortably within the top four at this stage of the season - which is a great achievement despite their defeat today.